The JL Audio ETXv3 Enclosed Speaker System Fixture for Pipe Mounting â 1.900" is a precision-engineered mounting solution designed to provide secure and stable installation of JL Audio ETXv2 and ETXv3 enclosed speakers. Built to fit 1.900-inch diameter pipe, this fixture is ideal for marine, powersports, and other rugged outdoor applications where reliable performance matters.• Compatible with JL Audio ETXv2 and ETXv3 enclosed speaker models• Designed to mount to 1.900" diameter pipe• Marine-grade durability and weather resistance | ETXv3 Enclosed Speaker System Fixture f/ Pipe Mounting 1.900